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3 years ago

What is the value of n in the equation 8n + 9 = -n

Mathematics

2 answers:

ohaa [14]3 years ago

7 0

Hi!

So first subtract 9 to both sides

8n = -n - 9

Now you want the n on one side and the constant on the other

so add the single n to the n side

9n = -9

Divide 9 to both sides to solve for n

n = -1

Hope this helps!

ANTONII [103]3 years ago

6 0

$8n+9=-n\ \ \ \ \ |+n\\\\9n+9=0\ \ \ \ |-9\\\\9n=-9\ \ \ \ |:9\\\\\boxed{n=-1}$

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2 years ago

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Answer:

Las longitudes solicitadas en yardas son:

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Step-by-step explanation:

Para hacer la conversión de unidades que requieres en el ejercicio, debes saber que:

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Con ese factor de conversión tú puedes hacer reglas de tres para calcular las medidas que requieres. En el caso del trayecto A:

Si:

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Si:

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Cuando se cancelan los metros se obtiene:

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3 years ago

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Step-by-step explanation:

Good evening ,

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3 years ago

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A pole that is 2.8 m tall casts a shadow that is 1.21 m long. At the same time, a nearby tower casts a shadow that is 48.75 m lo

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Step-by-step explanation:

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Therefore we have the relation:

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Cross multiplying:

x = 2.8 * 48.75 / 1.21

= 112.81 m

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3 years ago

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